按文献加工深度不同,文献分为零次、一次、二次、三次文献,下列不属于三次文献的是 ( )
A. 未来展望
B. 动态综述
C. 百科全书
D. 学位论文
E. 词典
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某课题组拟对“纤支镜在慢阻肺合并严重呼吸衰竭治疗中的应用”进行研究,选择维普数据库进行检索,可检索到的文献类型是 ( )
A. 会议论文
B. 学位论文
C. 期刊论文
D. 图书
E. 以上都不对
用PubMed的主题词检索心血管疾病(Cardiovascular Diseases)微量元素(trace elements)代谢的有关文献,应采用的检索式为 ( )
A. "Cardiovascular Diseases/metabolism"[Mesh] AND "Trace Elements/metabolism"[Mesh]
B. (( "Cardiovascular Diseases/blood"[Mesh] OR "Cardiovascular Diseases/cerebrospinal fluid"[Mesh] OR "Cardiovascular Diseases/metabolism"[Mesh] OR "Cardiovascular Diseases/urine"[Mesh] )) AND ( "Trace Elements/blood"[Mesh] OR "Trace Elements/cerebrospinal fluid"[Mesh] OR "Trace Elements/deficiency"[Mesh] OR "Trace Elements/metabolism"[Mesh]
C. (( "Cardiovascular Diseases/blood"[Mesh] OR "Cardiovascular Diseases/cerebrospinal fluid"[Mesh] OR "Cardiovascular Diseases/enzymology"[Mesh] OR "Cardiovascular Diseases/metabolism"[Mesh] OR "Cardiovascular Diseases/urine"[Mesh] )) AND ( "Trace Elements/blood"[Mesh] OR "Trace Elements/cerebrospinal fluid"[Mesh] OR "Trace Elements/deficiency"[Mesh] OR "Trace Elements/metabolism"[Mesh] OR "Trace Elements/pharmacokinetics"[Mesh] OR "Trace Elements/urine"[Mesh] )
D. "Cardiovascular Diseases"[Mesh] AND "Trace Elements"[Mesh] )
E. (( "Cardiovascular Diseases/blood"[Mesh] OR "Cardiovascular Diseases/cerebrospinal fluid"[Mesh] OR "Cardiovascular Diseases/enzymology"[Mesh] OR "Cardiovascular Diseases/metabolism"[Mesh] OR "Cardiovascular Diseases/urine"[Mesh] )) AND ( "Trace Elements/blood"[Mesh] OR "Trace Elements/cerebrospinal fluid"[Mesh] OR "Trace Elements/metabolism"[Mesh] OR "Trace Elements/pharmacokinetics"[Mesh] OR "Trace Elements/urine"[Mesh] )
CBM高级检索界面,可选择的字段中不包括的字段为 ( )
A. 中文标题
B. 关键词
C. 主题词
D. 参考文献
E. 摘要
关于CNKI、PubMed和CBM,说法正确的是 ( )
A. 均可免费获取全文
B. 均为全文数据库
C. 均提供主题词检索
D. 均提供检索结果引文分析
E. 均支持逻辑组配检索和精确检索
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